Keep quiet signs were ignored as Maidenhead Library celebrated its 40th birthday in style with a 70's themed party.
Fancy dress, live music from The Retros, a raffle and a free buffet were all on offer to mark the occasion on Tuesday.
Susan Wellings, team leader at the library on St Ives Road, said: "The great turn out today shows how important the library is to everybody.
"We are competing with so much but our success proves that we are still a service which people need."
Raffle prizes were donated by restaurants and shops, along with a lava lamp from Mathmos to match the theme.
Mayor of Windsor and Maidenhead, Cllr Andrew Jenner, cut the celebratory birthday cake with renowned local author Sir Michael Holroyd and congratulated the staff on their hard work.
"I just think we are so fortunate because the Royal Borough have continued to invest in the library," he said.
"They have ensured that it always has the latest technology when so many others have fallen behind and closed."
Michael Holroyd is best known for his biographical work and said that, having not attended university, he educated himself by spending summers in the Maidenhead library reading adventure novels.
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